Hydraulic riveting-machine.



No. 656,097. Patented Aug. l4, I900. W. H. DERBYSHIRE.

HYDRAULIC RIVETING MACHINE.

(Application filed May 18, 1899.)

(No Modal.) 4 Sheets-Sheet I;

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No. 656,097. Patented Aug. I4, I900. W. H. DERBYSHIRE. HYDRAULIC RIVETING MACHINE.

4 Sheets-Sheet 2,

(No Model.)

1 E w J q if Patented Aug. 14,1900.

W. H. DERBYSHIRE.

HYDRAULIC RIVETING MACHINE.

4 Sheets--Sheet 3 (Application filed May 18, 1899.)

(No Model.)

No. 656,097. Patented Aug. l4, I900. W. H. DERBYSHIRE.

HYDRAULIC RIVETING MACHINE.

(Application filed May 18, 1899.) (No Model.) 4 Sheets8heet 4.

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NITED STATES .A T FFICE.

WILLIAM H. DERBYSHIRE, OF OHAMBERSBURG, PENNSYLVANIA.

HYDRAULIC RIV E'T-ING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 656,097, dated August 14, 1900.

Application filed May 181 1899.

To all whom it may concern.- J

Be it known that I, WILLIAM H. DERBY- SHIRE, a citizen of the United States, and a resident of Chambersburg, Pennsylvania, have invented certain Improvements in Hydraulic Riveting-Machines, of which the following is a specification.

My invention relates to certain improvements in hydraulic riveting-machines.

The following are the objects of my invention: the arranging of the glands so that they can be readily set up or repacked without dismantling the machine, to arrange the parts so that the machine can be accurately and economically built, and to provide a hydraulic riveter with a flush top. 7

In the accompanying drawings, Figure l is a side view of my improved hydraulic riveter. Fig. 2 is a plan view. Fig. 3 is an enlarged sectional view on the line 3 3, Fig. 4:, showing the riveting-head. Fig. 4 is a sectional plan View on the line 4 4, Fig. 3, of the rivetinghead. Fig: 5 is a view looking in the direction of the arrow, Fig. 3. Fig. 6 is a section on the line 6 6, Fig. 3; and Fig. 7 is a view of a modification.

A is the ordinary'yoke-f-rame of the. hydraulic riveter, having two arms A A Secured to the stake or arm A in any suitable manner is a die-holder a. The upper portion of the arm A has two extensions a a Carried by the extension a is a cylinder-casting B, having wings I) b, which are seated on an ex tension 0.. The cylinder-casting B has two cylinders B B one within the other, 13 being the largest cylinder, and adapted to this cylinder is the plunger extension at of the riveting-head D. This plunger d is in the form of a deep flange,- so that it will readily pass the extended portion of the cylinder- B which is the small cylinder, for returning the riveting-head. I

Heretofore in riveting-machines of this type it has been common to use the ordinary cup-rings extensively used in hydraulic machines; but these on p-rings areobjectionable on the ground thatthey are not accessible in the case of leakage, and especially in a machine of the type shown the riveter would have to be dismantled in order to adjust or renew the packing. One of the main features Serial No. 717,363. (No model.)

of my invention is to so arrange the packing for the plunger of the riveting-head that it is accessible at all ti mes and can be readily taken up or renewed without dismantling the machine and without interfering with the operation of the riveter.

The plunger-section OZ of the riveting-head is circular in cross-section, and adapted to .this plunger is a ring E. This ring fits within the cavity of the cylinder, and packing e is mounted between the ring and the base of the cavity. Stub-bolts 6 pass through openings at its outer end a bracket F, in which is mounted the riveting-die f. The bracket in the present instance is detachably secured to the riveting-head D by bolts.

The riveting-head has flanges d, (clearly shownin Fig. 5,) and the flanged portion of the head rests within a recess in the baseplate G, and secured to the base-plate are plates 9, which overlap the flanges d on the head, and the base-plate G, as well as the overlapping plates,are secured to the projecting portion a of the arm A by bolts and screws g. By making the base-plate G separate from the arm A, I am enabled to build the riveter much more economically than heretofore, as the extension 0. of the arm A can be planed OE and finished, being made of cast-steel, and the riveting-head can be fitted to the base-plate, which may be of castiron, and the base-plate can be planed ofi, being a comparatively small piece, to the proper thickness, so that the riveting-head will aline with the cylinder, and if the parts should wear all that is necessary is to insert a sliver or strip between the projection a and the base-plate. I find that this is a great convenience in setting up the machine, as it is a very difficult matter to adjust riveters as now constructed.

Adapted to the small cylinder B at the rear of the machine is a plunger H, carried by a cross-head H, and this cross-head is connected to projections d on each side of the riveting-head by rods h h, which extend through recesses formed in the projection a, so that the rods will have free movement out of contact with the projections or the cylinder-casting; but in order to guide these rods I form brackets b at the rear end of the cylinder, Fig. 4, and these brackets act as bearings for the rods. I preferably make the brackets part of the cylinder-casting, so that the parts will always be in line.

There is a packing-box I, through which the plunger II passes, and in this packingbox is packing 2, held in place by a packingring *6, secured to the packing-box by stubbolts B, Fig. 3. Thus it will be seen that the packing is accessible from the out-side and the packing of both cylinders can be set up or replaced without dismantling the machine.

At one side of the cylinder is the controlling-valve J, of any suitable construction. In the present instancej is the inlet-pipe and j is the discharge. In the casing of the controlling-valve J are two valves controlling the admission and discharge of fluid from the cylinder. These valves are operated by a pivoted lever K, connected to a hand-lever K by a rod k In order to limit the movement of the riveting-head D, I form a slot g in the base-plate G and form a recess a in the extension 11 of the arm A, and projecting through the riveting-head D is a pin L. The lower portion of this pin passes through the slot 9 and enters the cavity a. The pin L has a flange 1 at its upper end resting on a shoulder, whereby the pin is held in position. The 'upper portion of the pin is preferably below the upper face of the riveting-head and can e removed by screwing a handhold or other mplement into a cavity in the end of the pin. The pin, it will be noticed, limits the movement of the riveting-head, but by simply withdrawing the pin the riveting-head can readily be detached from the cylinder.

In Fig. '7 I have shown the riveting-head in the form of a cylinder, so that in manufacturing it can be turned in a lathe, dispensing with planing. The portion 61 of the rivetinghead is adapted to a base-plate E in the form of a bearing. Mounted on this base-plate is a cap-bearing E being a substitute for the plates 9 g described above. lVithin this bearing is a bushing, and a key is provided to prevent the riveting-head turning therein.

Projections d on the riveting-head are provided by which the plunger is connected to the riveting-head by bolts h.

I claim as my invention 1. The combination in a hydraulic rivetingmachine, of an arm having two extensions, a cylinder carried by one extension, a rivetinghead adapted to the other extension and having a plunger-section adapted to the cylinder, a recess in the cylinder around the plunger, packing adapted to said recess, and a ring adapted to clamp the packing to the cylinder, said ring being mounted between the two projections of the arm, substantially as specified.

2. The combination in a riveting-machine, of an arm having two extensions, a cylindercasting mounted on one projection, two cylinders mounted in said casting, one within the other, the larger cylinder being open at the front and the small cylinder open at the back, a riveting-head, a plunger adapted to the larger cylinder, 2. cross-head connected to the riveting-head, and a plunger extending from the cross-head into the small cylinder, the two cylinders being recessed with packing-rin gs entering said recesses and confining the packing therein, the parts being so arranged that the packing can be adjusted or renewed without dismantling the machine, substantially as described.

3. The combination in a riveting-machine, of an arm, a cylinder mounted on said arm, a base-plate also mounted on the arm, a space between the base-plate and the end of the cyl= inder, a riveting-head adapted to the baseplate, said riveting-head having a plunger adapted to the cylinder, a flanged packingring adapted to a cavity in the cylinder, the flange of the packing-ring rest-ing within the space between the cylinder and the base-plate, with means for adjusting the packing-ring, substantially as described.

4. The combination in a hydraulic rivetingmachine, of an arm, a cylinder-casting mounted on said arm having two cylinders,one within the other, a riveting-head having a plunger adapted to the larger cylinder, said plunger being recessed so as to pass the smaller cylinder,a plunger adapted to the smaller cylinder, a cross-head to which the plunger is secured,connecting-rods connecting the crosshead to projections on the riveting-head,bearings for the rods carried by the cylinder-casting, substantially as described.

5. The combination in a riveter, of an arm having two extensions, a cylinder-castingcarried by one extension, a base-plate carried by the other extension, said base-plate being recessed at the top, a riveting-head adapted to the recessed portion of the base-plate, flanges on the side of the riveting-head, and capplates extending over the flanges, and screws and bolts for securing the cap-plate and baseplate to the extension of the arm, substantially as described.

6. The combination in a hydraulic riveter,

IIO

of the cylinder, a riveting-head having a plun- 

